The PROKUT GAF7748 is a premium CBN (Cubic Boron Nitride) grinding wheel engineered specifically for 3/4″ pitch harvester chains. Measuring 145mm x 8mm, this solid-steel wheel delivers a razor-sharp edge without the heat build-up that ruins chain temper. It never loses its profile, requires zero dressing, and is CNC-balanced for vibration-free operation.

• Use: 3/4″ Pitch Harvester Chains.

• Maintenance: Zero—no dressing or deglazing required.

• Dimensions: 145mm (Dia) x 8mm (Thick) x 22.2mm (Bore).

PROKUT GAF7748 CBN Grinding Wheel – The Professional Choice for sharpening 3/4″ Harvester Chains

The PROKUT GAF7748 is designed to keep your harvester chains in peak condition with minimal effort. Unlike traditional vitrified “pink” stones that wear down and change shape, this CBN wheel is CNC-machined from solid steel, ensuring it maintains its perfect 8mm profile for the entire life of the wheel.

Why Upgrade to the PROKUT GAF7748?

• Cool-Cutting Technology: CBN is a super-abrasive that conducts heat away from the cutting edge. This prevents “blueing” or burning of the cutters, preserving the metallurgical hardness and extending the life of your expensive harvester chains.

• Permanent Profile: The steel core never shrinks or loses its diameter. You get the exact same sharpening geometry on the last tooth as you did on the first, every single time.

• Maintenance-Free: Say goodbye to dressing stones and deglazing sticks. This wheel remains open and ready to grind without any maintenance.

• Vibration-Free Precision: Every wheel is precision-balanced on CNC machinery. This results in a superior finish on the chain and less mechanical wear on your grinder’s motor and bearings.

• Cleaner Workshop: Because the wheel doesn’t break down like a bonded stone, it produces significantly less dust, keeping your workspace cleaner and safer.

Technical Specifications:

• Part Number: GAF7748

• Diameter: 145mm (5 3/4″)

• Thickness: 8.0mm (0.315″)

• Arbor/Hole Size: 22.2mm (7/8″)

• Abrasive: High-Concentration Cubic Boron Nitride (CBN)

• Application: Standard Hardened Steel Harvester Chains

• Country of Origin: Australian Made

Important Usage Note: This wheel is specifically for standard hardened steel chains. Do not use on Tungsten Carbide-tipped chains, as this will destroy the CBN coating and void the warranty.